New research into iodine tablets suggests the case for giving them to all pregnant women is compelling.

Despite only finding an association between fluoridated water and underactive thyroid gland, the paper says we should try to reduce all sources of fluoride in the environment.
Joost Nelissen/FlickrFebruary 25, 2015

Iodine is naturally present in a range of food, especially seaweed and fish. So it may seem odd that the people of an island nation (most of whom live along its vast coastline) are not getting enough of…